Use -dev suffix only for devel builds

Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>

CMakeLists.txt

@@ -12,8 +12,16 @@ SET(SEMS_MAJOR_VERSION 1)
 SET(SEMS_MINOR_VERSION 3)
 SET(SEMS_BUILD_VERSION 0)
 SET(SEMS_EXTRA_VERSION dev)
-SET(SEMS_VERSION
-    "${SEMS_MAJOR_VERSION}.${SEMS_MINOR_VERSION}.${SEMS_BUILD_VERSION}-${SEMS_EXTRA_VERSION}")
+
+FIND_PATH(IS_DEVEL ".git" PATHS "${CMAKE_SOURCE_DIR}")
+IF(IS_DEVEL)
+	SET(SEMS_VERSION
+	    "${SEMS_MAJOR_VERSION}.${SEMS_MINOR_VERSION}.${SEMS_BUILD_VERSION}-${SEMS_EXTRA_VERSION}")
+ELSE(IS_DEVEL)
+	SET(SEMS_VERSION
+	    "${SEMS_MAJOR_VERSION}.${SEMS_MINOR_VERSION}.${SEMS_BUILD_VERSION}")
+ENDIF(IS_DEVEL)
+MESSAGE(STATUS "Configuring ${CMAKE_PROJECT_NAME} v. ${SEMS_VERSION}")
 
 IF(CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE)
 	message(FATAL_ERROR "In-source builds are not allowed.